package com.qd.flow.service.bill;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.cdqidi.constant.ConstantDto;
import com.cdqidi.db.BaseService;
import com.cdqidi.dto.CacheKey;
import com.cdqidi.exception.ApiException;
import com.cdqidi.util.RedisTemplateUtil;
import com.qd.common.flow.domain.bill.FlowHisTaskDTO;
import com.qd.flow.mapper.bill.FlowHisTaskMapper;
import com.qd.flow.model.bill.FlowHisTask;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Optional;

import static java.util.stream.Collectors.toList;

/**
 * 历史任务
 *
 * @author sjk
 */
@RequiredArgsConstructor
@Service
@Slf4j
public class FlowHisTaskService extends BaseService<FlowHisTaskMapper, FlowHisTask> {

    private static final String PREFIX_ID = "flow_his_task_hisTaskId_{0}";

    private final RedisTemplateUtil<FlowHisTask> redisTemplateUtil;

    /**
     * 保存
     *
     * @param dto 页面对象
     * @return 页面对象
     */
    @Transactional(rollbackFor = Exception.class)
    public FlowHisTaskDTO save(FlowHisTaskDTO dto) {
        final FlowHisTask model = dtoToModel(dto);
        try {
            if (super.save(model)) {
                return modelToDto(model);
            }
            throw new ApiException("添加失败");
        } finally {
            clearCache(model);
            model.freeData();
        }
    }

    /**
     * 修改
     *
     * @param dto 页面对象
     * @return 页面对象
     */
    @Transactional(rollbackFor = Exception.class)
    public FlowHisTaskDTO update(FlowHisTaskDTO dto) {
        final FlowHisTask historyModel = Optional.ofNullable(getById(dto.getHisTaskId())).orElseThrow(() -> new ApiException("ID不存在,不能更新"));
        final FlowHisTask model = dtoToModel(dto);
        try{
            if (super.updateById(model)) {
                return modelToDto(model);
            }
            throw new ApiException("更新失败");
        }finally {
            clearCache(historyModel);
            historyModel.freeData();
            model.freeData();
        }
    }

    /**
     * 批量添加
     *
     * @param mList 数据库对象
     */
    @Transactional(rollbackFor = Exception.class)
    public void saveBatch(List<FlowHisTask> mList) {
        try {
            if (!super.saveBatch(mList)) {
                throw new ApiException("批量添加失败");
            }
        } finally {
            clearCaches(mList);
        }
    }

    /**
     * 批量更新
     *
     * @param mList 数据库对象
     */
    @Transactional(rollbackFor = Exception.class)
    public void updateBatchIds(List<FlowHisTask> mList) {
        final List<String> ids = mList.stream().map(FlowHisTask::getHisTaskId).collect(toList());
        final List<FlowHisTask> historyModelList = checkIds(ids);
        try {
            if (!super.updateBatchById(mList)) {
                throw new ApiException("批量更新失败");
            }
        } finally {
            clearCaches(historyModelList);
            historyModelList.clear();
            ids.clear();
        }
    }

    /**
     * 删除，单个
     *
     * @param hisTaskId 主键 
     */
    @Transactional(rollbackFor = Exception.class)
    public void removeById(String hisTaskId) {
        final FlowHisTask historyModel = Optional.ofNullable(getById(hisTaskId)).orElseThrow(() -> new ApiException("数据不存在,不能删除"));
        try {
            if (!super.removeById(hisTaskId)) {
                throw new ApiException("删除失败");
            }
        } finally {
            clearCache(historyModel);
            historyModel.freeData();
        }
    }

    /**
     * 批量删除
     *
     * @param ids 主键集合
     */
    @Transactional(rollbackFor = Exception.class)
    public void removeBatchIds(List<String> ids) {
        final List<FlowHisTask> historyModelList = checkIds(ids);
        try {
            if (!super.removeByIds(ids)) {
                throw new ApiException("批量删除失败");
            }
        } finally {
            clearCaches(historyModelList);
            historyModelList.clear();
        }
    }

    /**
     * 根据传入对象构建查询参数，判断是否存在
     *
     * @param dto 参数
     * @return 存在为true
     */
    @Transactional(readOnly = true)
    public Boolean isExists(FlowHisTaskDTO dto) {
        final QueryWrapper<FlowHisTask> queryWrapper = createQueryWrapper(dto);
        final boolean exists = super.count(queryWrapper) > 0;
        queryWrapper.clear();
        return exists;
    }

    /**
     * 根据主键判断数据是否存在
     *
     * @param hisTaskId 主键 
     * @return 存在为true
     */
    @Transactional(readOnly = true)
    public Boolean isExistsById(String hisTaskId) {
        boolean exists = false;
        if (StringUtils.hasLength(hisTaskId)) {
            final FlowHisTask model = getById(hisTaskId);
            exists = (null != model);
            if (exists) {
                model.freeData();
            }
        }
        return exists;
    }

    /**
     * 根据主键获取数据
     *
     * @param hisTaskId 主键 
     * @return 单条记录
     */
    public FlowHisTask getById(String hisTaskId) {
        final String key = RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, hisTaskId);
        return redisTemplateUtil.get(new CacheKey().setKey(key).setTimeout(ConstantDto.REDIS_TIME_OUT_DAY), () -> super.getById(hisTaskId), FlowHisTask.class);
    }

    /**
     * 根据主键获取数据
     *
     * @param hisTaskId 主键 
     * @return 单条记录，转换成页面对象
     */
    @Transactional(readOnly = true)
    public FlowHisTaskDTO getByIdDto(String hisTaskId) {
        return Optional.ofNullable(getById(hisTaskId)).map(this::modelToDto).orElse(null);
    }

    /**
     * 根据条件查询单条数据
     *
     * @param dto 查询参数
     * @return 单条记录
     */
    public FlowHisTask getOne(FlowHisTaskDTO dto) {
        final QueryWrapper<FlowHisTask> queryWrapper = createQueryWrapper(dto);
        FlowHisTask model = super.getOne(queryWrapper);
        queryWrapper.clear();
        return model;
    }

    /**
     * 根据条件查询单条数据
     *
     * @param dto 查询参数
     * @return 单条记录，转换成页面对象
     */
    @Transactional(readOnly = true)
    public FlowHisTaskDTO getOneDto(FlowHisTaskDTO dto) {
        return Optional.ofNullable(getOne(dto)).map(this::modelToDto).orElse(null);
    }

    /**
     * 根据条件查询列表数据
     *
     * @param dto 查询参数
     * @return 列表数据
     */
    public List<FlowHisTask> getList(FlowHisTaskDTO dto) {
        final QueryWrapper<FlowHisTask> queryWrapper = createQueryWrapper(dto);
        final List<FlowHisTask> list = super.list(queryWrapper);
        queryWrapper.clear();
        return list;
    }

    /**
     * 根据条件查询列表数据
     *
     * @param dto 查询参数
     * @return 列表数据，转换成页面对象
     */
    @Transactional(readOnly = true)
    public List<FlowHisTaskDTO> getListDto(FlowHisTaskDTO dto) {
        return modelToDtoList(getList(dto));
    }

    /**
     * 分页数据
     *
     * @param page 分页对象
     * @param dto  查询参数
     * @return 分页信息
     */
    @Transactional(readOnly = true)
    public IPage<FlowHisTaskDTO> page(Page<FlowHisTask> page, FlowHisTaskDTO dto) {
        final QueryWrapper<FlowHisTask> queryWrapper = createQueryWrapper(dto, "t1.");
        final IPage<FlowHisTaskDTO> iPage = baseMapper.page(page, queryWrapper);
        Optional.ofNullable(iPage.getRecords()).ifPresent(l-> l.forEach(this::buildDisplay));
        queryWrapper.clear();
        return iPage;
    }

    /**
     * 清空缓存
     *
     * @param model 数据库对象
     */
    public void clearCache(FlowHisTask model) {
        if (null == model) {
            return;
        }
        redisTemplateUtil.deleteByKey(RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, model.getHisTaskId()));
    }

    /**
     * 批量清空缓存
     *
     * @param list 数据库对象
     */
    public void clearCaches(List<FlowHisTask> list) {
        if (null == list || list.isEmpty()) {
            return;
        }
        List<String> ids = list.stream().map(model -> RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, model.getHisTaskId())).collect(toList());
        if (!ids.isEmpty()) {
            redisTemplateUtil.deleteByKey(ids);
            ids.clear();
        }
    }

    /**
     * 数据库对象转页面对象
     *
     * @param model 数据库对象
     * @return 页面对象
     */
    public FlowHisTaskDTO modelToDto(FlowHisTask model) {
        if (null == model) {
            return null;
        }
        final FlowHisTaskDTO dto = new FlowHisTaskDTO();
        dto.setHisTaskId(model.getHisTaskId());
        dto.setBid(model.getBid());
        dto.setAddTime(model.getAddTime());
        dto.setStatus(model.getStatus());
        dto.setResult(model.getResult());
        dto.setNodeName(model.getNodeName());
        dto.setApprovalName(model.getApprovalName());
        dto.setApprovalOrgName(model.getApprovalOrgName());
        dto.setApprovalDepartName(model.getApprovalDepartName());
        dto.setBillId(model.getBillId());
        dto.setApproval(model.getApproval());
        dto.setApprovalOrg(model.getApprovalOrg());
        dto.setNodeId(model.getNodeId());
        dto.setProcessId(model.getProcessId());
        dto.setApprovalDepart(model.getApprovalDepart());
        dto.setOperatorType(model.getOperatorType());
        buildDisplay(dto);
        return dto;
    }

    /**
     * 页面对象转数据库对象
     *
     * @param dto 页面对象
     * @return 数据库对象
     */
    public FlowHisTask dtoToModel(FlowHisTaskDTO dto) {
        if (null == dto) {
            return null;
        }
        final FlowHisTask model = new FlowHisTask();
        model.setHisTaskId(dto.getHisTaskId());
        model.setBid(dto.getBid());
        model.setAddTime(dto.getAddTime());
        model.setStatus(dto.getStatus());
        model.setResult(dto.getResult());
        model.setNodeName(dto.getNodeName());
        model.setApprovalName(dto.getApprovalName());
        model.setApprovalOrgName(dto.getApprovalOrgName());
        model.setApprovalDepartName(dto.getApprovalDepartName());
        model.setBillId(dto.getBillId());
        model.setApproval(dto.getApproval());
        model.setApprovalOrg(dto.getApprovalOrg());
        model.setNodeId(dto.getNodeId());
        model.setProcessId(dto.getProcessId());
        model.setApprovalDepart(dto.getApprovalDepart());
        model.setOperatorType(dto.getOperatorType());
        return model;
    }

    /**
     * 码表转换
     *
     * @param dto 页面对象
     */
    public void buildDisplay(FlowHisTaskDTO dto) {

    }

    /**
     * 数据库对象转页面对象
     *
     * @param list 数据库对象
     * @return 页面对象
     */
    public List<FlowHisTaskDTO> modelToDtoList(List<FlowHisTask> list) {
        return Optional.ofNullable(list).orElse(Collections.emptyList()).stream().map(this::modelToDto).collect(toList());
    }

    /**
     * 页面对象转数据库对象
     *
     * @param list 页面对象
     * @return 数据库对象
     */
    public List<FlowHisTask> dtoToModelList(List<FlowHisTaskDTO> list) {
        return Optional.ofNullable(list).orElse(Collections.emptyList()).stream().map(this::dtoToModel).collect(toList());
    }

    /**
     * 拼装查询参数，除了主键的其他字段会自动加入进来
     *
     * @param dto 查询参数，不为空的属性会被自动加入
     */
    public QueryWrapper<FlowHisTask> createQueryWrapper(FlowHisTaskDTO dto) {
        return createQueryWrapper(dto, "");
    }

    /**
     * 拼装查询参数，除了主键的其他字段会自动加入进来
     *
     * @param dto        查询参数，不为空的属性会被自动加入
     * @param tableAlias 表别名
     */
    public QueryWrapper<FlowHisTask> createQueryWrapper(FlowHisTaskDTO dto, String tableAlias) {
        final QueryWrapper<FlowHisTask> queryWrapper = new QueryWrapper<>();
        if (null != dto) {
            if (StringUtils.hasLength(tableAlias) && tableAlias.charAt(tableAlias.length() - 1) != '.') {
                tableAlias += ".";
            }
            if (StringUtils.hasLength(dto.getBid())) {
                queryWrapper.eq(tableAlias + "bid", dto.getBid());
            }
            if (StringUtils.hasLength(dto.getResult())) {
                queryWrapper.eq(tableAlias + "result", dto.getResult());
            }
            if (StringUtils.hasLength(dto.getNodeName())) {
                queryWrapper.eq(tableAlias + "node_name", dto.getNodeName());
            }
            if (StringUtils.hasLength(dto.getBillId())) {
                queryWrapper.eq(tableAlias + "bill_id", dto.getBillId());
            }
            if (StringUtils.hasLength(dto.getNodeId())) {
                queryWrapper.eq(tableAlias + "node_id", dto.getNodeId());
            }
            if (StringUtils.hasLength(dto.getProcessId())) {
                queryWrapper.eq(tableAlias + "process_id", dto.getProcessId());
            }
            if (StringUtils.hasLength(dto.getApprovalDepart())) {
                queryWrapper.eq(tableAlias + "approval_depart", dto.getApprovalDepart());
            }
            if (StringUtils.hasLength(dto.getOperatorType())) {
                queryWrapper.eq(tableAlias + "operator_type", dto.getOperatorType());
            }
        }
        return queryWrapper;
    }

    /**
     * 批量检查主键在数据库中是否存在
     *
     * @param ids 主键集合
     * @return 主键查询出来的集合
     */
    public List<FlowHisTask> checkIds(List<String> ids) {
        if (null == ids || ids.isEmpty()) {
            throw new ApiException("ids不能为空");
        }
        final List<FlowHisTask> list = super.listByIds(ids);
        if (list.isEmpty()) {
            throw new ApiException("ids不存在" + Arrays.toString(ids.toArray()));
        }
        if (ids.size() == list.size()) {
            return list;
        }
        List<String> dbIds = list.stream().map(FlowHisTask::getHisTaskId).collect(toList());
        final List<String> notExistsList = ids.stream().filter(id -> !dbIds.contains(id)).collect(toList());
        dbIds.clear();
        if (!notExistsList.isEmpty()) {
            throw new ApiException("ids不存在" + Arrays.toString(notExistsList.toArray()));
        }
        return list;
    }

    @Transactional(readOnly = true)
    public List<FlowHisTaskDTO> getListByBillIdDTO(String billId) {
        return modelToDtoList(getListByBillId(billId));
    }

    public List<FlowHisTask> getListByBillId(String billId) {
        final QueryWrapper<FlowHisTask> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("bill_id", billId);
        queryWrapper.orderByAsc("add_time");
        List<FlowHisTask> flowHisTasks = getBaseMapper().selectList(queryWrapper);
        queryWrapper.clear();
        return flowHisTasks;
    }

    @Transactional(readOnly = true)
    public List<FlowHisTaskDTO> getListByBid(String bid, String operatorType) {
        final QueryWrapper<FlowHisTask> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("bid", bid);
        if(StringUtils.hasLength(operatorType)){
            queryWrapper.eq("operator_type", operatorType);
        }
        queryWrapper.orderByAsc("add_time");
        List<FlowHisTask> flowHisTasks = getBaseMapper().selectList(queryWrapper);
        queryWrapper.clear();
        return modelToDtoList(flowHisTasks);
    }
}